PERFORMANCE TESTING SUMMARY CONTENTS

04 Durability comparison – SCION 12 Termite attack and decay trial – Thailand 20 Dimensional stability test – SHR Accoya® wood is more durable than teak and other naturally durable species Accoya® is demonstrating significantly higher performance than high quality Accoya® wood exhibits superior dimensional stability compared to other Teak in field stake tests over a 5 year test period naturally durable species 05 15-year window L-joint test – BRE Accoya® wood L-joints exhibit no rot or decay after 15 years 13 15 and 20 year canal lining test 21 Improved thermal performance – IFT Rossenheim and Accoya® exhibits no rot or decay after water and soil exposure Buildcheck 06 3-year Accoya® face laminated window test – BRE Accoya® wood offers improved thermal performance in the UK’s BFRC window The windows were rated ‘excellent’ (10/10) 14 Stability, durability and strength tests - TP assessment Excellent results against US joinery test standard: water repellence, fungal 07 Whole life costs durability and bending strength 22 Thermal gain - on decks, Japan Accoya® wood has lower life cycle cost Accoya® shows to have less thermal gain than WPC and thermally modified 15 9.5-year external coatings test – SHR decks 08 60-year service life – BRE Accoya® wood excels in external coatings tests BRE confirms 60 year service life for Accoya® in exterior applications 23 Hardness and wear test – BM Trada 16 3.5-year external coatings test – BM Trada Accoya® wood performance in indentation, scuffing and mechanical abrasion 09 Formosan termite durability test – LSU Black translucent coated Accoya® cladding outperforms pine and Siberian larch test Accoya® demonstrates durability in aggressive US termite tests 17 Board stability test – BM Trada 24 Carbon footprints – Verco Accoya® wood outperforms Western Red Cedar, Larch and Pine Accoya® wood’s carbon footprint is less than steel, aluminium, PVC and 10 Field test – Kagoshima test site, Japan unsustainably sourced tropical hardwood Accoya® demonstrate durability in 5 year decay and termite in ground tests, Southern Japan 18 7-year coating test at Teknos - BM Trada Accoya®, translucent wood stain finish significantly outperforms vertical grain 26 Flame spread and smoke developed test - SwRI 11 Termite durability test Australia – AFRC western red cedar and Siberian larch over 5 year period ASTM E84 C classification Accoya® demonstrates significantly higher performance than other class 1 timbers in Australian termite tests

2

INTRODUCTION

Accoya® wood is the result of over 80 years research and development. Combining the proven modification technique of acetylation with cutting-edge proprietary technology, this high performance wood is created for demanding outdoor applications; from windows to doors, decking to cladding, bridges to boats.

Wood for Accoya® is sourced from sustainable forests and manufactured using Accsys’ patented modification process. Its properties exceed those of the best tropical hardwoods and it can handle the most demanding jobs - even those that are presently only considered feasible with non-sustainable materials.

Accoya® is a highly proven product with testing from many different perspectives on a worldwide basis. Many tests have been conducted in real-world conditions over many years. This summary shows some of these results. Full reports of these and similar tests are available upon request. Many are already posted in the download section on accoya.com.

TRIED, TESTED AND PROVEN

3 DURABILITY COMPARISON DECAY RATES OF FUNGUS CELLAR STAKELETS – SCION [index of condition] 10 Accoya®

8

Scion, formerly known as New Zealand Forest Research Institute 6 Ltd, undertakes research and science and technology development 4 in forestry, wood products, biomaterials and bioenergy. Scion tested the durability of Accoya® wood against other naturally durable and 2 Merbau

preservative treated timbers. 0 Radiata Pine CCA H3.2 CCA H4

0 2 4 6 8 10 Time [yrs] The harsh tests run exposed timbers in accelerated decay chambers and in exterior ground contact tests at the Whakarewarewa site. The tests have run for ten years and show Accoya® performing better than teak, merbau, cypress, cedar and H3.2 (above ground, DECAY RATED FIELD STAKES uncoated horizontal) and H4 (in ground contact) preservative (CCA) treated timbers, proving that Accoya® has the highest possible durability classification. [index of condition]

10 Accoya® 8 CCA H4

6 CCA H3.2 Accoya® stake 4 Teak after 10 years 2 Cedar 0 Macrocarpa

0 2 4 6 8 10 Time [yrs]

Decay/insect damage rating system (based on ASTM D 1758) 10 = No decay or insect damage T = Discolouration or trace of decay, not positively identified as decay 9 = Minor decay, 0-3% of the cross section 8 = Lightly established decay, 3-10% of the cross section 7 = Well established decay, 10-30% of the cross section 6 = Extensive and deep decay, 30-50% of the cross section 4 = Deep and severe decay, more than 50% of the cross section 0 = Failed

4

Non-acetylated Accoya® wood wood showing showing no major attack rot or decay 15-YEAR* WINDOW L-JOINT TEST – BRE

The BRE (Building Research Establishment) is an independent institute based in Watford, UK.

In durability field testing to European Norm (EN) 330:1993 – which parallels America Wood-Preservers’ Association (AWPA) E9 – simple mortice and tenon joints (L-joints) are assembled, coated and placed outside, with the coating over the joint deliberately broken to allow water ingress that might be encountered if a joint is open, damaged or Non-acetylated wood Accoya® wood showing severe rot showing no poorly maintained. This test represents a worst case scenario for joinery products and and decay rot or decay requires the coated wood to be exposed to normal environmental factors.

In February 1998, L-joints were installed at the BRE Garston field exposure site (Watford, UK) facing the prevailing south westerly weather on an elevated test rig. The acetylated wood condition is unchanged and continues to look good, while the unmodified wood has degraded completely.

* Test report from 2013

BRE REPORTED:

“In simulated accelerated joinery field trials that represent a worst case scenario joinery product by enabling moisture ingress into the joint pine, sapwood wood L-joints acetylated to a slightly lower modification level than Accoya®, after 15 years exposure in the UK are performing very well. The trial indicates that a permeable timber species that is acetylated through the cross section to a durability class 1 level (e.g. Accoya®), would have a grading lower than the reference preservative TnBTO – and thus Accoya® would exceed the biological reference value and would be deemed to provide sufficient protection for long life window joinery.”

5 3.5-YEAR FACE LAMINATED ACCOYA WINDOW TEST – BRE

Two window frames made from face laminated Accoya® / pine / pine wood were installed in the BRE Window Joinery Test building in June 2012, AFTER 36 MONTHS OF EXPOSURE, facing South to maximise solar THESE FRAMES WERE INSPECTED ON: irradiance. One window frame was coated with a translucent finish, and General condition Appearance excellent one with an opaque white finish. Joint condition Excellent, joints tight, coating intact, Additionally, a range of durability and dimensional no evidence of movement or opening stability tests have been completed at IFT Rossenheim, Germany according to standard methods Bead condition for 2.0m length scantling stability and adhesive Excellent bond delamination resistance. The tests have been Coating condition completed for Accoya®-Pine-Pine and Accoya®- Excellent, bright, no signs of deterioration Spruce-Spruce combination. The scantlings met both or discoloration requirements. Reports are available upon request. Operation Movement of opening light was easy

This resulted in an ‘excellent’ overall rating (10/10).

6

SUPERIOR WHOLE LIFE COST FOR WINDOWS

A study with a Dutch window ACCOYA WOOD: producer and a maintenance company - Ensures lower maintenance costs shows that Accoya® is initially more - Ensures longer time between maintenance expensive but has a lower total - Has extended durability and won’t need cost than PVC, aluminium, pine and replacing for 50+ years hardwood windows over the life of the home.

COST EFFECTIVENESS LIFE CYCLE COST FOR WINDOW FRAMES PER WINDOW FRAME IN A TYPICAL DUTCH HOME

[in £ per 60+ year] [in €1,000]

40 50 Meranti 30 40 Spruce - Hardwood

20 30 Aluminium Life PVC maintenance 20 Accoya® 10 cost

Initial 10 0 cost

PVC Accoya® Aluminium Pine Meranti 0

0 10 20 30 40 50 Time [yrs]

7 60-YEAR SERVICE LIFE - BRE

After running tests and reviewing external and independent data, the BRE concluded that Accoya® wood, provided best design practice is followed, has a service life expectancy of 60 years when used in exterior applications such as windows, doors, cladding and balconies. The BRE stated that Accoya® wood shows excellent durability and stability properties. This position has been positively corroborated by TRADA and Heirott Watt University / Imperial College London conducting similar service life reviews.

“We consider that joinery, cladding and balconies prepared from Accoya® will show significantly improved coating performance properties. If the products are designed and built to the principles of best practice (to minimise moisture ingress and maximise water shedding), factory finished using quality coatings such as Sikkens or Teknos, installed by competent contractors and linked to a recognised best practice maintenance and care package, it will provide exterior wood products of outstanding durability and dimensional stability that would meet a 60-year service life requirement.”

8

Accoya® wood Non-Accoya® wood

FORMOSAN TERMITE DURABILITY TEST – LSU

Coptotermes formosanus, known as Formosan termites, are considered one of the world’s most aggressive termite species. Louisiana State University Accoya® wood Non-Accoya® wood (LSU) conducted a 99 day Formosan termite ‘choice’ test, using untreated radiata pine and Accoya® wood (2” x 4” lumber).

All four sides of the untreated radiata pine were attacked and left structurally compromised. In stark contrast, Accoya® wood only exhibited slight grazing. The results of standardised testing show that Accoya® wood was 22 times better than the untreated radiata (when measured by sample weight loss).

Additional testing by TPI at their exposure sites WEIGHT LOSS IN LSU FORMOSAN TERMITE TEST in Gainesville Florida and Cost Rica demonstrate that Accoya® performance exceeds that of high [%] quality (FEQ) teak. The results were developed 30 over a 5 year field trial period in accordance with AWPA E7-09 in ground stake test and AWPA E18- 06 ground proximity test. Performance level was 20 used to support the qualification of Accoya® for use in termite zones and ‘in ground’ application in Untreated 10 the ICC ESR-2825 which confirms Accoya® decking wood compliance with US Building Code.

Accoya® 0 wood

New Zealand New Zealand Chilean Radiata Chilean Radiata Southern Pine Southern Pine Radiata (leached) Radiata (unleached)(leached) (unleached) (leached) (unleached)

9 FIELD TEST – JWPA KAGOSHIMA TEST SITE, JAPAN

The extreme field test conducted was primarily against Accoya® wood Non-Accoya® wood two different types of termites in two locations of the wet test site wet test site field site located in Kagoshima, South Japan. The site is used by JWPA for assessment on the basis of the warm and wet climate, coupled with presence of Coptotermes formosanus in the dry area and Reticulitermes speratus is active in a wet area of the site. Collectively the sites also have an assortment of rot fungi present including white and brown rots.

After 5 years of testing, no signs of termite attack were Accoya® wood Non-Accoya® wood detected on any Accoya® test dry test site dry test site specimen. At the five year mark for the decay tests, the Accoya® is still completely unscathed, FIELD TRIAL EXPOSURE TO where nearly all untreated bait C. FORMOSANUS stakes of radiata pine, used as controls and typically changed [mean rating: 0=sound, 100=collapse of stake] each year were so badly 100 Radiata decayed that only the portions Pine above ground remained. 80

60

40

20

0 Accoya® 0 1 2 3 4 5 Time [yrs]

10

Accoya® Spotted Gum

TERMITE DURABILITY TEST AUSTRALIA – AFRC PNG Rosewood Radiata Pine

Mastotermes darwiniensis is The performance of the Accoya® Radiata the most destructive species of was markedly superior to that of all the naturally durable reference hardwood Australian termite and active timber samples. The mean mass loss was

north of the Tropic of Capricorn 8.5%. Accoya® Radiata would be expected Western Red Cedar American White Oak Hazard Class 3 above ground to perform well, and to a much higher level than timbers with equivalent natural testing was set up in Northern durability to those species investigated in Territory, Australia according this work, against termites in all regions to the AWPA protocol by the of Australia. Australian Forest Research Additional testing run at AFRC in MASS LOSS IN HAZARD CLASS H3 FIELD Company. accordance with AWPA protocol include performance evaluation in field testing TRIAL EXPOSURE TO M. DARWINIENSIS At the conclusion of the field trial all test against Coptotermes acinaciformis and specimens had evidence of contact by M. fungal decay testing alongside spotted [%] darwiniensis, and all untreated Eucalyptus gum, a durability class 1 rated timber 100 nitens bait-wood, used as a susceptible and density of 1,050kg/m³. Accoya® and attractive food source for maintaining performance matched spotted gum with 75 the presence of termites in exposure very low attack in the Coptotermes field containers, had been destroyed. The mean trial and bettered spotted gum in the mass loss of the untreated radiata pine fungal decay testing with almost no 50 sapwood was 95%. attack (<1.0%) 25 All four of the naturally durable reference hardwood timber samples were 0 significantly attacked by M. darwiniensis, Accoya® PNG Western Spotted Radiata American with mean mass losses ranging from 49% Rosewood Red Cedar Gum Pine White Oak to 100%. The PNG Rosewood was the most resistant to attack, whilst all of the American white oak test specimens were destroyed.

11 TERMITE ATTACK AND DECAY TRIAL, THAILAND

A test conducted by the Environmental Research Centre, Naresuan University involved setting up ground stake tests at sites around Thailand.

Test stakes were Accoya®, Teak and Makha. After 60 months TERMITE RATING DECAY RATING (5 years) Accoya® is demonstrating significantly higher performance than Makha hardwood and high quality Teak. This [index of condition] [index of condition] superior performance relative to high quality teak corroborates termite and decay evaluation tests reported in earlier pages of 10 10 this brochure in Florida, Costa Rica and New Zealand 8 Accoya® 8 Accoya®

6 6 Teak Teak

4 4

Makha Makha 2 2

0 0

0 1 2 3 4 5 Time [yrs] 0 1 2 3 4 5 Time [yrs]

12

Accoya® wood Non-Accoya® wood

15 AND 20 YEAR CANAL LINING TESTS

Accoya® wood’s high performance was proven with two Dutch project tests in the Flevopolder near Almere, one installed in 1995 and one in 2000. The SHR institute in the Netherlands originally set up the tests and made detailed inspections at respective 15 and 20 year exposure periods in 2015.

These tests include acetylated wood alongside control wood, preservative treated wood and hardwood species, used as a canal lining (fresh water exposure). These canal bank conditions are particularly punishing, especially at the waterline, since the wood is exposed to a combination of water, microbe rich soil and air (oxygen). Both trials show hardly any sign of rot, decay or fungal damage in acetylated wood – highlighting its class 1 durability status and reinforcing the 25-year warranty. From these test results, SHR concludes that the durability of acetylated wood in fresh water applications competes with highly durable hardwood species and professionally preserved wood.

13 STABILITY, DURABILITY & STRENGTH TESTS – TP WEIGHT LOSS IN TPI CONCLUSIONS DECAY TEST

[%] [index] Timber Products Inspection (USA)

25 125 undertook a number of thorough and independent tests to analyse Accoya® wood’s durability, stability and 20 100 strength performance characteristics in accordance with the USA’s Window & 15 75 Door Manufacturers Association (WDMA) requirements. 10 50 Accoya® wood outperformed radiata pine in Untreated Radiata accelerated decay chambers highlighting its 5 25 Pine durability. The results showed that Accoya® wood had a very low weight loss percentage for both

Accoya® brown rot (Gloeophyllum trabeum) and white rot 0 0 wood (Trametes versicolor) fungi against such types of Trametes Gloeophyllum MOR MOE WML versicolour fungus trabeum fungus (Modulus of Rupture - (Modulus Of (Work to decay. ultimate bending Elasticity - maximum Load) strength) Young’s Modulus) TP also evaluated mechanical properties. Overall, the properties of Accoya® are essentially the same as those of the untreated (radiata pine) control. The MOR and WML values of Accoya® are slightly higher and the average MOE value of Accoya® is slightly lower than that of untreated radiata pine unlike some wood modification techniques that cause significant reductions in strength.”

The final test proved that Accoya® meets WDMA’s stringent rot resistance requirements, which means it’s an ideal choice for windows and doors.

14

9.5-YEAR EXTERNAL Accoya® wood Non-Accoya® wood COATINGS TEST – SHR

Independent testing institute SHR Timber Research in The Netherlands conducted a comprehensive coatings test on Accoya® and untreated wood with opaque and film forming paints and stains.

Accoya® wood outperformed all other timbers, with better coating performance and superior coating adhesion in both wet and dry conditions. The white opaque performed extremely well, requiring no maintenance after 9.5 years – which is an important benefit in the long-term life cost of the product and ensures that Accoya® has a superior whole life cost compared to competing materials.

15 Accoya® wood cladding Siberian Larch cladding Pine cladding

3.5-YEAR EXTERNAL COATINGS TEST – BM TRADA

Leading timber research institute, BM Trada, After 3.5 years, Accoya® wood was found to outperform Accoya® wood, however, had a flat surface with no was commissioned by Accsys Technologies the competing cladding boards in a number of ways – grain raising, virtually no shelling, cracking, checking or showing excellent coating performance. Pine cladding fissuring. External dirt was easily cleaned off revealing to perform a series of exposure trials. boards showed severe levels of fissuring, resin exudation, a sound clean surface with no coating issues. This harsh end fissuring, paint peeling over fissures, shelling, surface test proves that Accoya® wood has superior coating The trials using the same coating began in February 2007 checking and board distortion; whilst Siberian larch was performance compared to many competing materials. This in Buckinghamshire, England and tested Accoya® cladding found to have extensive surface checking and burst resin test, using a translucent black coating for maximum radiant board’s resistance to natural weathering and splitting in pockets. heat build is a particuarly difficult situation for wood comparison to pine and Siberian larch. products. The results have provided the confidence to recommend Accoya® with black coatings around the world, including Australia - with positive real world results.

16

BOARD STABILITY TEST – BM TRADA

Leading timber research institute, BM Trada, tested the stability of Accoya® wood against other widely used Siberian Larch cladding materials by exposing coated boards to a high humidity environment and letting them acclimate.

BM Trada found that Accoya® wood had exceptional stability and stated that Accoya® used for cladding boards could increase from standard 150mm wide profiles to 200mm when used externally.

Western Red Cedar This increased width specification board shows Accoya® wood’s design flexibility and superior performance when compared to western red cedar, larch and pine.

Thermowood CUPPING DISTORTION

[mm]

5

4 Siberian Larch Accoya® 3

2 European Larch Thermowood 1 Pine Western Red Cedar

0 Accoya® 0 50 100 150 200 250 Time [hours]

17 Siberian Larch

7-YEAR COATING TEST AT TEKNOS – BM TRADA 2 end grain 1 end grain sealer coats sealer coat A weathering test was set up by Teknos (UK) Ltd, a leading coating Western Red Cedar supplied to the factory applied window, door and cladding industry across Europe. The test began in March 2009 to obtain natural weathering performance data, end grain sealing and profile design impact of three different timber substrates (coated) and on different cladding profiles. Apart from Accoya®, Western red cedar (WRC) and

Siberian larch were included in the test rig. 2 end grain 1 end grain sealer coats sealer coat After 7 years of natural exposure, the Accoya® boards have exhibited the best performance and have shown excellent stability, which has served to significantly reduce splitting Accoya® and fissuring at board ends, prevented distortion and fissuring around fixings as well as extending the expected lifetime of the coating.

Coated boards made from Western red cedar and Siberian larch are now in need of immediate maintenance whereas the Accoya® boards are yet to show any significant deleterious effects of weathering after five years and suggests this is likely to be an important factor in the overall reduction of maintenance frequency and costs. 2 end grain 1 end grain sealer coats sealer coat

18

TONGUE-AND-GROVE CLADDING FAILURE

[%]

100

80

End 60 fissures

Nail splits / 40 discoloration

Nail heads 20 flush / sunken

No failure 0

2 1 0 2 1 0 2 1 0 End grain sealer coat layers

Western Red Cedar Siberian Larch Accoya®

19 DIMENSIONAL STABILITY TEST – SHR

Leading Dutch timber research institute, SHR, undertook a series of tests to evaluate the dimensional stability of Accoya® wood.

Accoya® wood outperformed a wide range of competing timber products such as Teak, Iroko, Sapelle, Scots pine, Western red cedar, Japanese cypress, Japanese cedar and Radiata pine. This significant improvement in dimensional stability of Accoya® over all other timber provides short and long term benefit. In the short term, Accoya® remains stable during processing. In the medium term, joinery remains stable and resists movement when environmental conditions fluctuate after installation. Further on in service, deck boards remain flat, stable around fixings and with practically no splinters. Cladding boards and louvres retain their flush and smooth lines and coated products benefit from the board stability placing less stress on the coating and leading to requiring earlier maintenance.

Data on teak, iroko, sapele and scots pine have been extracted from published data:

Physical and related properties of 145 Timbers Jan F. Rijsdijk and Peter B. Laming TANGENTIAL SHRINKAGE VOLUME SHRINKAGE Kluwer Academic Publishers ISBN 0-7923-2875-2 [%] [%]

10 10

8 8

6 6

4 4

2 2

0 0

Accoya® Teak Iroko Sapele Scots Pine Accoya® Teak Western Red Japanese Japanese Radiata Cedar Cypress Cedar Pine

20

IMPROVED THERMAL PERFORMANCE – IFT ROSSENHEIM AND BUILDCHECK

Thermal value is a critical aspect in window and door design. The thermal conductivity of the wood (lambda value) makes a significant contribution to the overall window frame calculated thermal value.

Accoya® thermal conductivity has been assessed by IFT Rossenheim, Germany in accordance with EN1226: 2001 and then developed into the required declared value format, under by the most rigorous European assessment methods by the EN ISO 10456: 2008 procedure for determination of declared and design thermal values.

In comparison to other standard wood types for joinery, Accoya® thermal conductivity is:

- Superior to softwood by 8% - Superior to hardwood by 30% DECLARED λ These improved levels provide options in design,

in terms of achieving a higher U-Value for the [W/m·K] same window design by switching timber type, or alternatively using a more preferred aesthetic or 0.20 production friendly design without significantly compromising energy efficiency. 0.15

Accoya® is regularly used to achieve A rated 0.10 windows under the UKs BFRC Window Energy Rating Program where other woods in the same design 0.05 would not meet this standard.

0

Accoya® Softwood Hardwood

21 THERMAL GAIN ON DECKS, JAPAN

Thermal gain on decks and terraces is a particular issue in the summer season. A thermogram image analysis was arranged in Japan with the Hiroshima Prefectural Technology Research Institute to assess differences between Accoya®, thermally modified wood and three variants of commercial WPC decking.

The ambient temperature during the testing of all decks was 32°C. Deck board dimensions were comparable for all three types:

- Accoya® 26 x 140 Accoya® Thermally modified wood Wood plastic composite - Thermally modified wood 26 x 140 - WPC 25 x 145

The thermograms clearly indicate thermal gain in Accoya® is substantially less than the alternatives tested.

This low level of thermal gain, combined with in-situ benefits derived from Accoya® dimensional stability provide deck boards which are truly ‘barefoot friendly’. In-situ benefits derived from Accoya® stability are the boards resisting cupping and remaining flat, the fixings not being stressed and remaining flush, and finally, the boards not suffering splintering with prolonged weathering. 20°C 39°C 41°C 43°C 45°C 47°C 49°C 51°C 53°C 55°C 57°C 59°C

22

4 wood types Siberian Larch Thermowood compared for scuff résistance by the Snell Capsule Method at TRADA

Western Red Cedar Accoya®

HARDNESS & WEAR TEST – BM TRADA

Independent testing from leading MEAN HARDNESS LOAD TABER ABRASION WEIGHT LOSS timber research institute, BM

Trada, proved that Accoya® wood [kN] [g]

can withstand harsh, abrasive 5 5 environments. Thermowood 4 4 BM Trada’s testing showed that hardening 3 3 that occurs as a result of the Accoya® process Western Red Cedar results in greater resistance to indentation than Siberian Larch 2 2 European Larch western red cedar and two types of larch. This Accoya® is particularly useful when making specification 1 1 choices for cladding and ground floor exterior products. 0 0

Accoya® European Siberian Thermo- Western Red 0 500 1000 1500 2000 Revolutions [rpm] Separate scuffing and mechanical abrasion tests Larch Larch wood Cedar carried out by BM Trada show that Accoya® wood is just as good, if not better than the two types of larch, and significantly better than Western Red Cedar.

23 CARBON FOOTPRINTS – VERCO

The environmental performance of Accoya® is thoroughly tested and published following uncompromising leading independent international methodologies such as Life Cycle Analysis (LCA following ISO 14040/44) and Environmental Product Declarations GREENHOUSE GAS EMISSIONS (EPD following EN 15804). The results from these studies are PER M³ OF MATERIAL available for download on the Accoya® website and underline the [1,000 kg CO² eq] benign environmental performance of Accoya® wood. For example, 0 5 10 15 20 25 official carbon footprint studies show that Accoya® wood is an Aluminium environmentally compatible, even carbon negative, substitute for Steel carbon intensive materials such as plastics, metals and concrete, as Red Meranti well as for various wood species. (unsustainably sourced) Azobe (unsustainably sourced)

PVC

CARBON FOOTPRINT – CRADLE TO GATE Western Red Cedar (unsustainably sourced) In a carbon footprint assessment, the greenhouse gas emissions (GHG) during the life Concrete cycle of a material can be measured, and compared to alternative products in terms of kg Ceramic tile CO² equivalent (CO²e). A carbon footprint assessment was executed for Accoya® wood Plywood by Verco in line with the World Business Council for Sustainable Development and World (sustainably sourced)

Resources Institute’s Greenhouse Gas Reporting Protocol best practice guidelines, based MDF on a cradle to gate scenario, thus until the factory gate. This includes sourcing, harvesting (sustainably sourced) Azobe and processing of the input timber, as well as all energy and raw material consumption (sustainably sourced) and waste production in the acetylation plant of Accsys Technologies in Arnhem, the Red Meranti Netherlands. The results are shown in the graph to the right. (sustainably sourced) Accoya® (Radiata Pine)

Accoya® (US Alder)

Accoya® (EU Alder)

Western Red Cedar (sustainably sourced)

Accoya® (Scots Pine)

24

GREENHOUSE GAS EMISSIONS PER WINDOW FRAME (CRADLE TO GRAVE)

[kg CO² eq]

400

300

200

100

0

-100

Accoya® Red Meranti Accoya® Accoya® Accoya® PVC / Steel Alumimium Red Meranti (Scots Pine) (sustainably (European (USA Alder) (Radiata Pine) (unsustainably sourced) Alder) sourced)

CARBON FOOTPRINT The results show that Accoya® scores significantly It should be noted that the annual yield of – CRADLE TO GRAVE better than metals (aluminium), plastics (PVC), and renewable materials is not included in the carbon unsustainably sourced hardwood and is on par with footprint, which provides an important additional The figure above shows the greenhouse gas sustainably sourced (certified) hardwood. In case environmental advantage to wood, and in particular emissions per m³ of Accoya® wood from the Verco locally sourced wood is used to produce Accoya, for Accoya based on Radiata Pine, over non report, translated into real life application of a it is the best choice from environmental point of renewable materials. For example, the availability window frame by Delft University of Technology, view, not yet including the better performance of sustainably sourced Meranti is limited, which in order to account for the use-phase aspects such characteristics such as the improved dimensional makes illegal sourcing – with its catastrophical as material use, durability, carbon sequestration stability and UV resistance. Interestingly, because consequences – of this slow growing hardwood (following PAS 2050 guidelines), maintenance and of the limited emissions during production, carbon species from tropical forests a reality which often recycling scenarios. credits that can be ‘earned’ through i) temporary occurs. carbon storage during use (especially in case of a long lifespan) and ii) incineration for electricity in the End of Life phase, all sustainably sourced wood alternatives, including Accoya, are CO² negative over the full life cycle.

25 FLAME SPREAD TEST AND SMOKE DEVELOPED TEST - SWRI FIRE SPREAD INDEX*

[index]

120 In March 2009, Southwest Research Institute undertook Flame Spread Tests and Smoke Developed Tests in accordance with the 110 standard test method for surface burning characteristics of building materials NFPA 255 (ASTM E84, UL 723 & UBC 8-1). 100 The conclusion of the Flame Spread Test results is that Accoya® wood can be classified 90 within the range of standard timber species and achieves Class C in this US rating system.

80 Flame Spread Classification Flame Spread Index Lodgepole Accoya® Oak Sitka Maple Birch Cottonwood Class I (or A) 0 - 25 Pine Spruce Class II (or B) 26 - 75 Class III (or C) 76 – 200

Please see Accoya® Wood Information Guide for European classification D in EN14915. SMOKE DEVELOPED INDEX*

[index]

250

200

150

100

50

Yellow Oak Eastern Accoya® Lodgepole Western Cedar White Pine Pine Red Cedar

* data source: USDA (United States Dept of Agriculture) Wood Handbook. Lower numbers equal less flame spread or smoke.

26

IMPROVING PERFORMANCE, REDUCING ENVIRONMENTAL IMPACT

For more information and to download the latest test reports on Accoya’s outstanding performance, tested by leading independent institutes, then visit the download section at www.accoya.com

27 ACCOYA® ACCREDITATIONS

C2C FSC® AIA & RIBA

Accoya® wood is one of the very few building Of the various schemes for sustainability forestry Contact us to arrange an Architectural Institute products to have acquired Cradle to CradleSM available, the Forest Stewardship Councils® Accredited CPD or CEU presentation. Certification on the elusive C2C Gold Level, and (FSC®) is regarded as the leading and most for the category Material Health even at Platinum comprehensive certification programs available. level, the highest possible!. Cradle to Cradle provides a means to tangibly and credibly measure achievement in environmentally-intelligent design including the use of environmentally safe and healthy materials and instituting strategies for social responsibility. As a result, specification of Accoya® also yields additional credits in LEED v4, BREEAM and Google’s Healthy Materials Portal, Portico.

É CONT IT RO L L A É U E Q

C 4 CMQ 39/1

30860007 www.accoya.com www.deltamillworks.com

© Accsys Technologies, the trading name of Titan Wood Limited, December 2017. Accoya® and the Trimarque Device are registered trademarks owned by Titan Wood Limited, a wholly owned subsidiary of Accsys Technologies PLC, and may not be used or reproduced without written permission. Accoya® wood should 4701 East 5th Street always be installed and used in accordance with the written instructions and guidelines of Accsys Technologies and/or its agents (available upon request). Austin, TX 78702 Accsys Technologies accepts no liability for any defect, damage or loss that may occur where such written instructions and guidelines are not adhered to. The information contained within this document has not been independently verified, and no warranty (express or implied) or representation is given in respect of T: 512-385-1812 the same, including without limitation as to its accuracy, completeness or fitness for any purpose. Accsys Technologies and its affiliates, officers, employees or advisers expressly disclaim any liability to the fullest extent permitted by law for any loss or damage whatsoever arising in respect of such information or the E: [email protected] result of having acted upon it.